Merge branch 'pass-through-top-upstream-source-ref' into 'master'

Pass through TOP_UPSTREAM_SOURCE_REF for qa pipeline

See merge request gitlab-org/gitlab!22263

.gitlab/ci/notifications.gitlab-ci.yml

@@ -20,4 +20,4 @@ schedule:package-and-qa:notify-failure:
     - 'notify_on_job_failure schedule:package-and-qa qa-master "${NOTIFICATION_MESSAGE}" ci_failing'
   needs: ["schedule:package-and-qa"]
   allow_failure: true
-  when: always
+  when: manual # TODO: remove notify job if not necessary

scripts/trigger-build

@@ -85,7 +85,8 @@ module Trigger
         'TRIGGER_SOURCE' => ENV['CI_JOB_URL'],
         'TOP_UPSTREAM_SOURCE_PROJECT' => ENV['CI_PROJECT_PATH'],
         'TOP_UPSTREAM_SOURCE_JOB' => ENV['CI_JOB_URL'],
-        'TOP_UPSTREAM_SOURCE_SHA' => ENV['CI_COMMIT_SHA']
+        'TOP_UPSTREAM_SOURCE_SHA' => ENV['CI_COMMIT_SHA'],
+        'TOP_UPSTREAM_SOURCE_REF' => ENV['CI_COMMIT_REF_NAME']
       }
     end